<!DOCTYPE html>
<html>
	<head>
		<meta charset="UTF-8">
		<title>js的算数运算符</title>
		<script>
			var a = 3;
			var b = 4;
			document.write(a+b + "<br />")
			document.write(a-b + "<br />")
			document.write(a*b + "<br />")
			document.write(a/b +"<br >")
			document.write(a%b + "<br />")
			
		</script>
	</head>
	<body>
	</body>
</html>
